package io;

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo2 {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("./Bfiles/abc.png");
        FileOutputStream fos = new FileOutputStream("./Bfiles/abc_cp.png");
        int d = 0 ;
        byte[] data = new byte[1024*10]; // 10Kb
        long start = System.currentTimeMillis();
        while ((d = fis.read()) != -1) {
            fos.write(data,0,d);
        }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕!耗时"+(end-start)+"ms");
        fis.close();
        fos.close();

    }
}
